Demberelsuren, B., Lkhagva-Ochir, S., Tsolmon, A., Ganzorig, R., Avirmed, K., Mijiddagva, T., & Chinguun, B. (2023). Maceral composition, coal quality and depositional environments of the middle Permian Ukhaakhudag coal deposit, South Mongolia. Mongolian Geoscientist, 28(57), 54–70. https://doi.org/10.5564/mgs.v28i57.3202